Earlier quoted context omitted.
I agree, but our problem is with proof of work, not crypto. I don't buy/use bitcoin any more because of this. Ethereum is moving (the sooner the better), and the only other PoW crypto I have a bit of is innovating PoW and (hopefully) becomes more environmentally friendly as a result. To be honest, I'm still unclear on if this is even possible, and if energy usage becomes significant relative to what it does, I would…
Ethereum uses pow. Their pos mechanism doesn't work and is a perpetual coming soon promise
I don't really use Ethereum, but I commend the devs for recognizing the problem years ago (before I was even aware of it) and taking steps to remedy the situation.
In the short-term, yes, it is incredibly wasteful (though recent changes have disincentivized mining somewhat, even with a bit of protest) and there are many other cryptocurrencies which are already proof of stake available. This year, hopefully, Ethereum will finally move to PoS.